左束支起搏的现状与困惑

State of the art of left bundle branch pacing

左束支起搏时激动沿传导系统下传,保持了较好的电和机械同步,是比较生理性的起搏方式。对于阻滞部位位于希氏束以下的患者,左束支起搏可以越过阻滞部位起搏,是目前起搏领域研究的热点。左束支起搏作为一项新技术,尚处于临床探索阶段,左束支起搏的定义、标准及术式还有待规范,如何筛选合适的适应证也是亟待解决的问题,长期有效性和安全性尚需大规模临床试验验证。

Left bundle branch pacing engages in the electrical activation through left bundle branch area and produces ventricular electrical synchronization.This pacing has been considered as an attractive mode to achieve normal physiological pace markers.For patients with the site of block in infra-Hisian or distal His bundle,left bundle branch pacing can bypass the block region.As a new technology,left bundle branch pacing is still in the stage of clinical exploration.The definition,criteria,efficacy and safety of left bundle branch pacing need further investigation and validation in large randomized clinical trials.